I'm not sure if this is real or not, but I found it online

JANUARY

• January 1 - First Foot Day and Z Day
• January 2 - Run Up the Flagpole and See if Anybody Salutes It Day
• January 3 - Festival of Sleep Day
• January 4 - Trivia Day and Humiliation Day
• January 5 - Bird Day
• January 6 - Bean Day
• January 7 - Old Rock Day
• January 8 - National JoyGerm Day and Man Watcher's Day
• January 9 - Play God Day
• January 10 - Peculiar People Day, Sit inside and watch tv with friends all day
• January 11 - National Step in a Puddle and Splash Your * Friend Day
• January 12 - Feast of Fabulous Wild Men Day
• January 13 - Make Your Dream Come True Day and Blame Someone Else Day
• January 14 - National Dress Up Your Pet Day
• January 15 - Hat Day
• January 16 - Hot and Spicy Food International Day and National Nothing Day
• January 17 - Blessing of the Animals at the Cathedral Day
• January 18 - Winnie the Pooh Day
• January 19 - National Popcorn Day
• January 20 - National Buttercrunch Day
• January 21 - National Hugging Day
• January 22 - National Answer Your Cat's Question Day and National Blonde Brownie Day
• January 23 - National Handwriting Day, National Pie Day, and Measure Your Feet Day
• January 24 - Eskimo Pie Patent Day, National New Niece Day, Ela Isabbel Day
• January 25 - Opposite Day
• January 26 - Australia Day, Ironic Day, Australia is Where the flight in lost was from Day, National Let the tears fall Day
• January 27 - Punch the Clock Day and Thomas Crapper Day
• January 28 - National Kazoo Day, Clash Day, Rattle Snake Round-Up Day
• January 29 - National Cornchip Day
• January 30 - Escape Day, National Nemo Day, "Escapee! Gee, that's spelled just like escape!" Day
• January 31 - National Popcorn Day and Child Labor Day

FEBRUARY

• February 1 - Serpent Day
• February 2 - Purification Day
• February 3 - Cordova Ice Worm Day
• February 4 - Create A Vacuum Day
• February 5 - Disaster Day + World Nutella Day
• February 6 - Lame Duck Day
• February 7 - Charles Dickens Day
• February 8 - Kite Flying Day
• February 9 - Toothache Day
• February 10 - Umbrella Day
• February 11 - White Tee-Shirt Day and Don't Cry Over Spilled Milk Day
• February 12 - National Plum Pudding Day
• February 13 - Get A Different Name Day and Dream Your Sweet Day
• February 14 - Ferris Wheel Day and National Heart to Heart Day
• February 15 - National Gum Drop Day
• February 16 - Do A Grouch A Favor Day
• February 17 - Champion Crab Races Day
• February 18 - National Battery Day
• February 19 - National Chocolate Mint Day
• February 20 - Hoodie Hoo DayMore Info on Hoodie Hoo Day
• February 21 - Card Reading Day
• February 22 - Be Humble Day
• February 23 - International Dog Biscuit Appreciation Day
• February 24 - National Tortilla Chip Day
• February 25 - Pistol Patent Day (Samuel Colt)
• February 26 - National Pistachio Day
• February 27 - International Polar Bear Day
• February 28 - Public Sleeping Day
• February 29 - National Surf and Turf Day

MARCH

• March 1 - National Pig Day and Peanut Butter Lover's Day
• March 2 - Old Stuff Day
• March 3 - I Want You To Be Happy Day, Peach Blossom Day and National Anthem Day
• March 4 - Holy Experiment Day
• March 5 - Multiple Personalities Day
• March 6 - National Frozen Food Day
• March 7 - National Crown Roast Of Pork Day
• March 8 - Be Nasty Day
• March 9 - Panic Day
• March 10 - Festival Of Life In The Cracks Day
• March 11 - Johnny Appleseed Day and Worship of Tools Day
• March 12 - Alfred Hitchcock Day
• March 13 - Jewel Day
• March 14 - National Potato Chip Day
• March 15 - Buzzard's Day and Everything You Think Is Wrong Day
• March 16 - Everything You Do Is Right Day
• March 17 - Submarine Day
• March 18 - Supreme Sacrifice Day
• March 19 - Poultry Day
• March 20 - Proposal Day and Festival Of Extraterrestrial Abductions Day
• March 21 - Fragrance Day
• March 22 - National Goof-off Day
• March 23 - National Organize Your Home Office Day and National Chip and Dip Day
• March 24 - National Chocolate Covered Raisins Day
• March 25 - Pecan Day and Waffle Day
• March 26 - Make Up Your Own Holiday Day and Spinach Festival Day
• March 27 - National "Joe" Day
• March 28 - Something On A Stick Day
• March 29 - Festival Of Smoke and Mirrors Day
• March 30 - I Am In Control Day
• March 31 - Bunsen Burner Day and National Clams On The Half Shell Day

APRIL

• April 1 - One Cent Day
• April 2 - National Peanut Butter and Jelly Day
• April 3 - Tweed Day and Don't Go To Work Unless It's Fun Day
• April 4 - Tell-A-Lie Day
• April 5 - Go For Broke Day
• April 6 - Sorry Charlie Day More Info on Sorry Charlie Day
• April 7 - No Housework Day
• April 8 - All Is Ours Day
• April 9 - Winston Churchill Day and Name Yourself Day
• April 10 - Golfers Day
• April 11 - Eight-Track Tape Day
• April 12 - Look Up At The Sky Day
• April 13 - Blame Somebody Else Day
• April 14 - National Pecan Day
• April 15 - Rubber Eraser Day
• April 16 - National Stress Awareness Day and National Eggs Benedict Day
• April 17 - National Cheeseball Day
• April 18 - International Jugglers Day
• April 19 - Garlic DayMore Info On Garlic
• April 20 - Look Alike Day
• April 21 - Kindergarten Day
• April 22 - National Jelly Bean Day
• April 23 - Read Me Day and World Laboratory Animal Day
• April 24 - National Pigs In A Blanket Day
• April 25 - National Zucchini Bread Day
• April 26 - Richter Scale Day and National Pretzel Day
• April 27 - Tell A Story Day
• April 28 - Great Poetry Reading Day and Kiss-Your-Mate Day
• April 29 - National Shrimp Scampi Day
• April 30 - National Honesty Day

MAY

• May 1 - Mother Goose Day and Save The Rhino Day
• May 2 - Fire Day
• May 3 - Lumpy Rug Day
• May 4 - National Candied Orange Peel Day
• May 5 - National Hoagie Day
• May 6 - Beverage Day
• May 7 - International Tuba Day, Paste Up Day, and National Roast Leg of Lamb Day
• May 8 - No Socks Day and Have A Coke Day More Info on Coke
• May 9 - Lost Sock Memorial Day
• May 10 - Clean Up Your Room Day
• May 11 - Eat What You Want Day and Twilight Zone Day
• May 12 - Limerick Day
• May 13 - Leprechaun Day
• May 14 - National Dance Like A Chicken Day
• May 15 - National Chocolate Chip Day
• May 16 - Wear Purple For Peace Day
• May 17 - Pack Rat Day
• May 18 - International Museum Day and Visit Your Relatives Day
• May 19 - Frog Jumping Jubilee Day
• May 20 - Eliza Doolittle Day
• May 21 - National Memo Day and National Waitresses/Waiters Day
• May 22 - Buy-A-Musical-Instrument Day
• May 23 - Penny Day
• May 24 - National Escargot Day
• May 25 - National Tap Dance Day
• May 26 - Grey Day
• May 27 - Body Painting Arts Festival
• May 28 - National Hamburger Day
• May 29 - End Of The Middle Ages Day
• May 30 - My Bucket's Got A Hole In It Day
• May 31 - National Macaroon Day

JUNE

• June 1 - Dare Day
• June 2 - National Rocky Road Day
• June 3 - Repeat Day
• June 4 - Old Maid's Day
• June 5 - Festival Of Popular Delusions Day
• June 6 - Teacher's Day and National Applesauce Cake Day
• June 7 - National Chocolate Ice Cream Day
• June 8 - Name Your Poison Day
• June 9 - Donald Duck Day
• June 10 - National Yo-Yo Day
• June 11 - National Hug Holiday and King Kamehameha Day
• June 12 - Machine Day
• June 13 - National Juggling Day and Kitchen Klutzes Of America Day
• June 14 - Pop Goes The Weasel Day
• June 15 - Smile Power Day
• June 16 - National Hollerin' Contest Day
• June 17 - Watergate Day and Eat Your Vegetables Day
• June 18 - International Panic Day
• June 19 - World Sauntering Day
• June 20 - Ice Cream Soda Day
• June 21 - Cuckoo Warning Day
• June 22 - National Chocolate Eclair Day
• June 23 - National Pink Day
• June 24 - Museum Comes To Life Day
• June 25 - Log Cabin Day
• June 26 - National Chocolate Pudding Day
• June 27 - National Columnists Day
• June 28 - Paul Bunyan Day
• June 29 - Camera Day
• June 30 - Meteor Day

JULY

• July 1 - Creative Ice Cream Flavor Day and Build A Scarecrow Day
• July 2 - Visitation Of The Virgin Mary Day
• July 3 - Stay Out Of The Sun Day and Compliment Your Mirror Day
• July 4 - National Country Music Day and Tom Sawyer Fence-Painting Day
• July 5 - Workaholics Day
• July 6 - National Fried Chicken Day
• July 7 - National Strawberry Sundae Day
• July 8 - Video Games Day
• July 9 - National Sugar Cookie Day
• July 10 - Clerihew Day
• July 11 - National Cheer Up The Lonely Day
• July 12 - National Pecan Pie Day
• July 13 - Fool's Paradise Day
• July 14 - National Nude Day
• July 15 - National Tapioca Pudding Day and Respect Canada Day
• July 16 - International Juggling Day
• July 17 - National Peach Ice Cream Day
• July 18 - National Ice Cream Day and National Caviar Day
• July 19 - Flitch Day
• July 20 - Ugly Truck Contest Day
• July 21 - National Tug-Of-War Tournament Day
• July 22 - Ratcatcher's Day
• July 23 - National Vanilla Ice Cream Day
• July 24 - Amelia Earhart Day
• July 25 - Threading The Needle Day
• July 26 - All Or Nothing Day
• July 27 - Take Your Pants For A Walk Day
• July 28 - National Milk Chocolate Day
• July 29 - Cheese Sacrifice Purchase Day
• July 30 - National Cheesecake Day
• July 31 - Parent's Day

AUGUST

• August 1 - Friendship Day and National Raspberry Cream Pie Day More Info on Pies
• August 2 - National Ice Cream Sandwich Day
• August 3 - National Watermelon Day
• August 4 - Twins Day Festival
• August 5 - National Mustard Day
• August 6 - Wiggle Your Toes Day
• August 7 - Sea Serpent Day
• August 8 - Sneak Some Zucchini Onto Your Neighbor's Porch Night
• August 9 - National Polka Festival
• August 10 - Lazy Day
• August 11 - Presidential Joke Day
• August 12 - Middle Child's Day
• August 13 - Blame Someone Else Day
• August 14 - National Creamsicle Day
• August 15 - National Relaxation Day and National Failures Day
• August 16 - Bratwurst Festival
• August 17 - National Thriftshop Day
• August 18 - Bad Poetry Day
• August 19 - Potato Day
• August 20 - National Radio Day
• August 21 - National Spumoni Day
• August 22 - Be An Angel Day
• August 23 - National Spongecake Day
• August 24 - Knife Day
• August 25 - Kiss-And-Make-Up Day
• August 26 - National Cherry Popsicle Day
• August 27 - Petroleum Day
• August 28 - World Sauntering Day
• August 29 - More Herbs, Less Salt Day
• August 30 - National Toasted Marshmallow Day
• August 31 - National Trail Mix Day

SEPTEMBER

• September 1 - Emma M. Nutt Day
• September 2 - National Beheading Day
• September 3 - Skyscraper Day
• September 4 - Newspaper Carrier Day
• September 5 - Be Late For Something Day
• September 6 - Fight Procrastination Day
• September 7 - Neither Rain Nor Snow Day
• September 8 - National Date Nut Bread Day and Pardon Day
• September 9 - Teddy Bear Day
• September 10 - Swap Ideas Day
• September 11 - No News Is Good News Day
• September 12 - National Pet Memorial Day and National Chocolate Milkshake Day
• September 13 - Defy Superstition Day
• September 14 - National Cream-filled Donut Day
• September 15 - Felt Hat Day
• September 16 - Stay Away From Seattle Day and Collect Rocks Day
• September 17 - National Apple Dumpling Day
• September 18 - National Play-doh Day
• September 19 - National Butterscotch Pudding Day
• September 20 - National Punch Day
• September 21 - World Gratitude Day and International Banana Festival
• September 22 - Hobbit Day and Dear Diary Day
• September 23 - Checkers Day and Dogs In Politics Day
• September 24 - Festival Of Latest Novelties
• September 25 - National Comic Book Day
• September 26 - National Good Neighbor Day and National Pancake Day
• September 27 - Crush A Can Day
• September 28 - Ask A Stupid Question Day
• September 29 - Poisoned Blackberries Day
• September 30 - National Mud Pack Day

OCTOBER

• October 1 - World Vegetarian Day and Magic Circles Day
• October 2 - Name Your Car Day
• October 3 - Virus Appreciation Day
• October 4 - National Golf Day
• October 5 - National Storytelling Festival
• October 6 - German-American Day and Come and Take It Day
• October 7 - National Frappe Day
• October 8 - American Tag Day
• October 9 - Moldy Cheese Day
• October 10 - National Angel Food Cake Day
• October 11 - It's My Party Day
• October 12 - International Moment Of Frustration Scream Day
• October 13 - National Peanut Festival
• October 14 - Be Bald and Free Day and National Dessert Day
• October 15 - White Cane Safety Day
• October 16 - Dictionary Day
• October 17 - Gaudy Day
• October 18 - No Beard Day
• October 19 - Evaluate Your Life Day
• October 20 - National Brandied Fruit Day
• October 21 - Babbling Day
• October 22 - National Nut Day
• October 23 - National Mole Day
• October 24 - National Bologna Day
• October 25 - Punk For A Day Day
• October 26 - Mule Day
• October 27 - Sylvia Plath Day
• October 28 - Plush Animal Lover's Day and National Chocolate Day
• October 29 - Hermit Day
• October 30 - National Candy Corn Day
• October 31 - National Magic Day and Increase Your Psychic Powers Day

NOVEMBER

• November 1 - Plan Your Epitaph Day
• November 2 - National Deviled Egg Day
• November 3 - Sandwich Day and Housewife's Day
• November 4 - Waiting For The Barbarians Day
• November 5 - Gunpowder Day
• November 6 - Saxophone Day and Marooned Without A Compass Day
• November 7 - National Bittersweet Chocolate With Almonds Day
• November 8 - Dunce Day
• November 9 - Chaos Never Dies Day
• November 10 - Forget-Me-Not Day
• November 11 - Air Day
• November 12 - National Pizza With The Works Except Anchovies Day
• November 13 - National Indian Pudding Day
• November 14 - Operation Room Nurse Day
• November 15 - National Clean Out Your Refrigerator Day
• November 16 - Button Day
• November 17 - Take A Hike Day
• November 18 - Occult Day
• November 19 - Have A Bad Day Day
• November 20 - Absurdity Day
• November 21 - World Hello Day and False Confessions Day
• November 22 - Start Your Own Country Day
• November 23 - National Cashew Day
• November 24 - Use Even If Seal Is Broken Day
• November 25 - National Parfait Day
• November 26 - Shopping Reminder Day
• November 27 - Pins And Needles Day
• November 28 - Make Your Own Head Day
• November 29 - Square Dance Day
• November 30 - Stay At Home Because You're Well Day

DECEMBER

• December 1 - National Pie Day and Eat A Red Apple Day
• December 2 - National Fritters Day
• December 3 - National Roof-Over-Your-Head Day
• December 4 - Wear Brown Shoes Day
• December 5 - National Sacher Torte Day
• December 6 - National Gazpacho Day and Mitten Tree Day
• December 7 - National Cotton Candy Day
• December 8 - Take It In The Ear Day
• December 9 - National Pastry Day
• December 10 - Festival For The Souls Of Dead Whales
• December 11 - National Noodle Ring Day
• December 12 - National Ding-A-Ling Day
• December 13 - Ice Cream and Violins Day
• December 14 - National Bouillabaisse Day
• December 15 - National Lemon Cupcake Day
• December 16 - National Chocolate Covered Anything Day
• December 17 - Underdog Day and National Maple Syrup Day
• December 18 - National Roast Suckling Pig Day
• December 19 - Oatmeal Muffin Day
• December 20 - Games Day
• December 21 - Look At The Bright Side Day, National Flashlight Day, National French Fried Shrimp Day, and Hamburger Day
• December 22 - National Date-Nut Bread Day, National Antici.............................................pation! Day
• December 23 - Roots Day
• December 24 - National Egg Nog Day
• December 25 - National Pumpkin Pie Day
• December 26 - National Whiners Day
• December 27 - National Fruitcake Day
• December 28 - Card Playing Day and National Chocolate Day
• December 29 - Pepper Pot Day
• December 30 - Festival Of Enormous Changes At The Last Minute and National Bicarbonate Of Soda Day
• December 31 - Unlucky Day